On January 26, 2018, Wang, Fang; Zhang, Zhaochao; Li, Chong; Zhang, Xiaoqing published a patent.Category: pyrimidines The title of the patent was Process for preparation of organic compound based on pyridine and quinoxaline. And the patent contained the following:
The invention relates to preparation of organic compound based on pyridine and quinoxaline and application to OLED device. Compound I was prepared via multi step synthesis with coupling reactions as key steps. The compound has low absorption and high refractive index in visible light field, and can effectively improve light extraction efficiency of the OLED device when applied to CPL layer of the OLED device. The compound has deep HOMO energy level and high electronic mobility, can be used as a hole blocking/electron transport layer material of the OLED device, and can effectively block the hole or energy from being transferred from a light-emitting layer to one side of an electronic layer, so as to improve compounding efficiency of the hole and electron in the light-emitting layer, and further improve light emission efficiency and prolong service life of the OLED device. The experimental process involved the reaction of 5-Bromo-2,4,6-trichloropyrimidine(cas: 63931-21-5).Category: pyrimidines
The Article related to quinoxaline pyridine based organ compound preparation oled, Heterocyclic Compounds (More Than One Hetero Atom): Pyrazines and Quinoxalines (Including Piperazines) and other aspects.Category: pyrimidines
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia